diff --git a/Gremlin/GremlinData/DBClasses/DbHelper.cs b/Gremlin/GremlinData/DBClasses/DbHelper.cs
index 9e1de85..1dce511 100644
--- a/Gremlin/GremlinData/DBClasses/DbHelper.cs
+++ b/Gremlin/GremlinData/DBClasses/DbHelper.cs
@@ -20,7 +20,8 @@ namespace Gremlin.GremlinData.DBClasses
     internal static class DbHelper
     {
         private static readonly DateTime FarInTheFuture = DateTime.Parse("2050-12-31t00:00:00.000000z", CultureInfo.CurrentCulture);
-        private static readonly ParallelOptions parallelOptions = new() { MaxDegreeOfParallelism = Environment.ProcessorCount * 2 };
+        private static readonly ParallelOptions parallelOptions = new() { MaxDegreeOfParallelism = Environment.ProcessorCount * 4 };
+        private static readonly Random random = new();
 
         public static bool CheckDatabaseConnection(string connectionString)
         {
@@ -1814,6 +1815,7 @@ namespace Gremlin.GremlinData.DBClasses
         {
             return await Task.Run(() => ImportCustomDescriptionsFromCsv());
         }
+
         public static async Task<bool> UpdateProductsFromCsvAsync()
         {
             return await Task.Run(() => UpdateProductsFromCsv());
@@ -1867,7 +1869,6 @@ namespace Gremlin.GremlinData.DBClasses
             catch { return null; }
         }
 
-        private static readonly Random random = new();
         public static string RandomString(int length)
         {
             const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
diff --git a/Gremlin/GremlinData/DBClasses/ProductEqualityComparer.cs b/Gremlin/GremlinData/DBClasses/ProductEqualityComparer.cs
new file mode 100644
index 0000000..d4ed993
--- /dev/null
+++ b/Gremlin/GremlinData/DBClasses/ProductEqualityComparer.cs
@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+using System.Text;
+using Gremlin.GremlinData.EntityClasses;
+
+namespace Gremlin.GremlinData.DBClasses
+{
+    public class ProductEqualityComparer : IEqualityComparer<Product>
+    {
+        public bool Equals(Product product1, Product product2)
+        {
+            return !((product1 != null || product2 != null)
+                && !(product1 != null && product2 != null
+                && product1.ProductNumber == product2.ProductNumber
+                && product1.OptionNumber == product2.OptionNumber
+                && product1.BreakRangeFrom == product2.BreakRangeFrom
+                && product1.BreakRangeTo == product2.BreakRangeTo));
+        }
+
+        public int GetHashCode(Product product)
+        {
+            StringBuilder sb = new();
+            _ = sb.Append(product.ProductNumber).Append(product.OptionNumber).Append(product.BreakRangeFrom).Append(product.BreakRangeTo);
+            return sb.ToString().GetHashCode();
+        }
+    }
+}
diff --git a/Gremlin/GremlinUtilities/FileIO.cs b/Gremlin/GremlinUtilities/FileIO.cs
index bcab2c3..a85753a 100644
--- a/Gremlin/GremlinUtilities/FileIO.cs
+++ b/Gremlin/GremlinUtilities/FileIO.cs
@@ -12,7 +12,6 @@ namespace Gremlin.GremlinUtilities
     internal static class FileIO
     {
         public static string ReadResource(string name)
-        //Source and credit to: https://stackoverflow.com/questions/3314140/how-to-read-embedded-resource-text-file  
         {
             Assembly assembly = Assembly.GetExecutingAssembly();